Lock.



I. ST. G. GOLDMAN; DEGD.

n. n GOLDMAN, EXEOUTRIX.

LOCK.

APPLICATION FILED JUNE 6, 1912. 1 078 192 Patented Nov. 11, 1913.2HEETS-SHBET 1.

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I. ST. 0. GOLDMAN, DECD.

B H GOLDMAN, EXEOUTRIX.

I LOOK.

APPLIOATION FILED JUNE 6, 1912.

Patented Nov. 11, 1913.

2 SHEETS-SHEET 2.

cOLLfMBlA' PLANDGRAPH co., WASHINGTON, D. c

V ful Improvements in Locks, of which the.

UNITED sTA' ss PATENT cr mes.

ISAAC ST. CLAIR GOLDMAN, DECEASED, LATE OF LOS ANGELES, CALIFORNIA, BYELLA E. GOLIDMAN, 'EXECUTRIX, 0F LOS ANGEL-ES, CALIFORNIA, ASSIGNOR 0FONE-HALF TO I1. S. HACKNEY, OF ST. PAUL, MINNESOTA.' p

. LOCK.

Specification of Letters'l atent.

Patented Nov. 11, 1913.

To all whom it may camera:

United States and a resident of Los Angeles, in the county of LosAngeles, State of California, did invent certain new and usefollowing isa specification.

lock shown and described in Letters Patentof the United States No.927,139, issued hereinafter July 6, 1909. I

A further object is to simplify the construction of the lock, dispensingwith unnecessary parts and thereby effecting a considerable economy inthe manufacture of the article.

The invention consists generally in, various constructions andcombinations, all as described and particularly pointed out in theclaims.

In the accompanying drawings forming part of this specification, Figure'1 is a Seetional view showin a lock embodying the invention, with theetch projected, Fig. 2is a similar view, showin the latch withdrawn,Fig. 3 is a vert1cal sectional view showing the position of the key inthe lock preparatory to operating the tumblers, Fig.

4 is an edge view of the lock, Fig. 5 is a sectional view with thelocking latch removed,

illustrating the means for setting the tumblers to allow the latch to bewithdrawn.

Without the use of the key, Fig. 6 is a sectional view on the line m.z'of Fig. 5, Fig. 7 is a horizontal sectional vie-w through the upperportion of the lock, Fig. 8 is a similar view through the lower portionof the look.

In the drawing, 2 represents the lock casing, adapted to be fitted intoa mortise in the door and secured therein in the usual way.

3 is a latch having the usual beveled face 4 at its outer end andprovided at its inner ends with a T-shaped head 5. This latch is adaptedto slide horizontally through an opening 6 in the casing and is normallyheld in its projected position by means of a spring 7 which bears on thelatch at one end I I and at its other end rests on the bottom of Be itknown that IsA'Ao ST. CLAIR GroLn- MAN, deceased, formerly a citizen ofthe 9 is a rotatingbarrel journaled at its ends inthe casing and havingthe usual socket 10 therein for the knob spindle. A lug 11 is g mountedon this barrel and a plate 12 has a The invention relates to mortiselocks and shoulder 13 in the path of this lug, said plate being slidablysupported between the upper wall of the casing and a pin 14: that ismounted in the wall of the casing. An

arm 15 depends'from said plate and has a horizontal recess 16 therein.

y A series of tumblers 17 are pivoted at and normally held by springs 19incontact with a wall 20, said tumblers varying in width so that whenthey are resting upon said wall they will be out of alin'ement with oneanother and all of them will be out of register with the recess 16.Upward movement of these tumblers is limited by a stud 21 having asocket therein for a screw 22 which passes through a face plate 23which, upon being removed, allows access to the mechanism of the lock.The plate 12 also has an arm 24 thereon provided with an ofil set 25that is adapted to engage the T-head 5 of the latch and retract thelatch against the tension of the spring 7 when the tumblers are set inposition to allow movement of the plate 12.

A bell crank 26 is pivoted on the pin 8 and has an arm 27 projectingupwardly there from into contact with a wing 28 which projects from thebarrel 9, the upper end of said arm being preferably curved inwardlytoward said barrel and normallyresting on the upper edge of said wing.Said bell crank also has an arm 39 extending horizontally and providedwith a head 30 in which a socket 31 is formed to receive the key 32,said socket being open at each end and allowing the insertion of the keyfrom either side of the lock. The wing 28, in addition to its functionof oscillating the bell crank, is adapted to contact with the-shoulder25 on the arm 24 and actuate the plate 12 to withdraw the lock ng latcwhen the tumblers are set in their releasing position, as indicated inFig. 5, and the knob barrel is r tated toward the left.

The key is provided with a series of upwardly projecting keywards 33that are adapted to enter a corresponding number of holes 34L in theplate r and contact with the lower edges of the tumblers resting on saidplate. qThe key-wards varyin length and when they are thrust up throughthe holes in the plate 20 the move ment of the tumblers will be timed sothat theiriedges will register with one another and with the recess inthe plate 12 and allow 2 V the plate to be retracted to engage the latchand withdraw it, also This willta-ke place I after the key is insertedinto-the socket and when the knob'is turned.

fcReferringto Fig. 1, the arm 27 is shown in contact withthe upper edgeof the wing which normally tends to hold the bell crank in the positionshown in Fig. 1. At the same time that the knob is turned, the arm 11will engage the shoulder 13, move the plate 12 thatthedoor may be openedwithout the 7 i 1 the knob may be turned-and the latch or bolt:

' turn the knob, nomanual movement of the key being necessary, theturning of the and retract the latch 31 to the position indicated: inFig. 2, thereupon unlocking the door. Y

It is sometimes desirable to set the lock so use of a key. A crank 36 istherefore mounted in the bottom'of' the casing having a finger piece 37accessible through the wall of the casing and held against outwardmovement by a pin 38' engaging the bent end of the crank. An arm 39 ispivoted on the pin 8 and has a plate 40 at one end to contact with saidcrank and an. upper edge inv position to engage the lower edges of thetumblers 17 and lift them intoalinement withone another and inpositionto register with the recess 16. When thishas been done retracted withoutthe use of a' key.

From the foregoing description it will'be noted that to unlock the doorit is only nec-} essary to insert the key into the socket and knobraising the key until its wards engage the tumblers and lift themallsimultaneously 1 to allow retraction of the plate 12 and the lockinglatch.

may be modified and stillbe within the scope of this invention.

What is claimed is l p 1. The combination, with a casing and a Thismovementof thearm 27 sliding latch or bolt, of a plate having means forengaging and retracting said latch, a series of tumblers arranged tonormally prevent movement of said plate, a rotating knob barrel, meansactuated by the rotation of said barrel for moving a key into engagementwith said tumblers to actuate them and release said plate andsimultaneously move said plate and retract said latch.

- 2. The combination, with a casing and a locking latch or bolttherefor, of a sliding plate having means to engage and retract saidlatch and provided with a recess therein, a series of tumblers normallyout of alinement with said recess, a rotating knob barrel, a bell crankhaving a key socket to receive a key, said barrel having means to engagesaid bell crank and oscillate it during the initial movement of saidbarrel to move the key'into engagement with said tumblers and aline themwith said recess,

bell crank and actuate it to retract said latch.

3. The-combination, with a casing and; a locking latch or bolttherefor,of a sliding, recessed plate having means to engage and retract saidlatch, a series of tumblers normally out ofalinement with said recessand locking said plate against retraction, a r0- tating knob barrelhaving a wing thereon, an oscillating bell crank having one-arm arrangedto contact with said wing, the other arm of said bell crank having a keysocket therein adapted to receive a key, the initial rotation of saidknob barrel oscillating said bell crank and moving the key intoengagement with said tumblers to aline them with one another and withsaid recess, and means for actuating said plate to retract said latch.

42. The combination, with a casingand a locking latch therefor, of aseries of tumblers, pivoted therein, a plate arranged to support saidtumblers and having a series of holes therein, means having a key sockettherein,'means,normally locked by said tumblers forretr'acting saidlatch, a knob barrel and mechanism actuated by the rotationof by saidtumblers for retracting said latch,

a knob barrel, and mechanism actuated by 1 the rotation of said barrelfor moving the t In various ways the details ofconstruction keyintoengagement with said tumblers and releasing said latch retractingmeans.

6. The combination, with a lock casing and a locking latch, of a seriesof pivoted tumblers, a knob, and mechanism actuated by the rotation ofsaid knob in either direc- In witness whereof, I have hereunto set 10.

tion for moving a key to actuate said tummy hand this 20th day of April,1912.

blers and release said latch. ELLA E GOLDMAN 7. The combination With alock casing 5 and a locking latch therefor, of pivoted tumygzzg g; 5;; gz za Z 51 e gZZZZZ/Zent of blers, a knob barrel, and mechanism actuatedby the rotation of said barrel in either direc- Witnesses: tion formoving a key into engagement with FRANCES E. GOLDMAN, said tumblers andreleasing said latch. V STELLA B. HEALY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). G.

